tretinoin
/trɛˈtɪnoʊɪn/
noun
- A form of vitamin A used in creams and gels to treat acne and reduce wrinkles.
- Tretinoin can make your skin more sensitive to sunlight, so wear sunscreen.
- Many people use tretinoin cream to improve the appearance of fine lines.
- Her dermatologist prescribed tretinoin to help clear up her acne.